[ISSUE #2209]🚸Implement DefaultMappedFile#get_mapped_byte_buffer🍻 #2210
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🧹 Nitpick comments (1)
rocketmq-store/src/log_file/mapped_file.rs (1)
371-371: Update documentation to reflect the signature change.Please update the method documentation to include:
- The change in return type from owned to borrowed
- The lifetime implications of returning a reference
- The performance benefits of zero-copy access
Apply this diff to add the documentation:
+ /// Retrieves a reference to the mapped byte buffer. + /// + /// This method provides zero-copy access to the underlying memory-mapped file by returning + /// a reference to the byte buffer. The returned reference is valid for the lifetime of + /// the mapped file. + /// + /// # Returns + /// A reference to the byte buffer (`&[u8]`) of the mapped file, which avoids unnecessary + /// memory allocation and provides direct access to the underlying memory. fn get_mapped_byte_buffer(&self) -> &[u8];
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📒 Files selected for processing (2)
rocketmq-store/src/log_file/mapped_file.rs(1 hunks)rocketmq-store/src/log_file/mapped_file/default_mapped_file_impl.rs(1 hunks)
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🔇 Additional comments (2)
rocketmq-store/src/log_file/mapped_file/default_mapped_file_impl.rs (1)
527-530: LGTM! The implementation is efficient and thread-safe.The implementation correctly returns a reference to the memory-mapped file while maintaining thread safety through atomic operations. This change improves performance by avoiding unnecessary memory allocation.
rocketmq-store/src/log_file/mapped_file.rs (1)
371-371: LGTM! The signature change improves performance.The change from
bytes::Bytesto&[u8]aligns with Rust's zero-copy principles and eliminates unnecessary allocations.
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #2210 +/- ##
==========================================
- Coverage 28.73% 28.72% -0.01%
==========================================
Files 498 498
Lines 71099 71102 +3
==========================================
- Hits 20430 20427 -3
- Misses 50669 50675 +6 ☔ View full report in Codecov by Sentry. |
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Which Issue(s) This PR Fixes(Closes)
Fixes #2209
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MappedFileRefactortrait